1/*
 2 *  Copyright (C) 2014 Red Hat Inc.
 3 *
 4 *  Author: Vivek Goyal <vgoyal@redhat.com>
 5 *
 6 * This source code is licensed under the GNU General Public License,
 7 * Version 2.  See the file COPYING for more details.
 8 */
 9
10#ifndef SHA256_H
11#define SHA256_H
12
13#include <linux/types.h>
14#include <crypto/sha.h>
15
16/*
17 * Stand-alone implementation of the SHA256 algorithm. It is designed to
18 * have as little dependencies as possible so it can be used in the
19 * kexec_file purgatory. In other cases you should use the implementation in
20 * crypto/.
21 *
22 * For details see lib/sha256.c
23 */
24
25extern int sha256_init(struct sha256_state *sctx);
26extern int sha256_update(struct sha256_state *sctx, const u8 *input,
27			 unsigned int length);
28extern int sha256_final(struct sha256_state *sctx, u8 *hash);
29
30#endif /* SHA256_H */